public function testContentTypeDetection() {
		$request = new Request(array('env' => array(
			'CONTENT_TYPE' => 'application/json; charset=UTF-8',
			'REQUEST_METHOD' => 'POST'
		)));
		$this->assertTrue($request->is('json'));
		$this->assertFalse($request->is('html'));
		$this->assertFalse($request->is('foo'));
	}